US Bridges

Coll 7317 over Middle Loup River

Good

Thomas County, Nebraska · Seneca · Structure no. C008600325

Built
1993
32 years old
Condition
Good
inspected June 2023
Type
Tee Beam
Prestressed Concrete
Length
72 ft
2 main spans
Daily traffic
65
1998 count
Owner
County
County Highway Agency

About this bridge

Coll 7317 over Middle Loup River is a prestressed concrete tee beam carrying Coll 7317 over Middle Loup River in Thomas County, Nebraska. It was built in 1993, so it is 32 years old, younger than the Nebraska average of 47.1 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 65 vehicles a day, projected to reach 110 by 2033. The structure is 72 ft (21.9 m) long and 30 ft wide. If it were closed, the detour would be 571.7 mi (920 km).

CarriesColl 7317
CrossesMiddle Loup River
LocationSeneca
RouteCounty Highway 7317
Coordinates42.0437, -100.8283
Functional classRural Minor Collector

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure7 GoodSome minor problems.
Substructure7 GoodSome minor problems.
Channel and channel protection9 ExcellentNo problems noted.
Last inspectionJune 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; action required to protect exposed foundations
Structural evaluation7: Better than present minimum criteria
Deck geometry7: Better than present minimum criteria
Waterway adequacy9: Superior to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating70.5 US tons
Inventory rating41.9 US tons

Structure

Structure typeTee Beam
MaterialPrestressed Concrete
DeckConcrete, cast-in-place
Main spans2
Design loadUnknown
Structure length72 ft (21.9 m)
Longest span35 ft (10.7 m)
Deck width30 ft (9.2 m)
Roadway width28 ft (8.5 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic65 (1998)
Projected traffic110 by 2033
Trucks0%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed571.7 mi (920 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Coll 7317 over Middle Loup River built?

It was built in 1993, making it 32 years old in 2025.

What condition is Coll 7317 over Middle Loup River in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in June 2023.

How much traffic does Coll 7317 over Middle Loup River carry?

About 65 vehicles per day (1998 count).

How long is Coll 7317 over Middle Loup River?

The structure is 72 ft (21.9 m) long with a longest span of 35 ft (10.7 m) and a deck 30 ft wide.

Who owns Coll 7317 over Middle Loup River?

It is owned by the County Highway Agency.